Machine for shaping rands.



E. A. TRIPP.

MACHINE FOB SHAPING BANDS.

APPLICATION FILED NOV. 2, 1908.

Patented Oct. 27, 1914.

11 SHEETS-SHEET 1.

MIA/5555:

Fig.1.

THE NORRIS PETERS c0. PHOTO-LITH m. WASH NGTUN, D C.

E. A. TRIPP. MAGHINB FOB SHAPING BANDS.

APPLICATION FILED NOV. 2, 1908.

1,1 1 5,037. Patented 001;. 27, 191-4,

11 SHEETS-SHEET 2.

@WM @wvwa THE NORRIS PETERS CO4, PHOTD-L|THO.. WASHINGTON. D. C-

E. A. TRIPP.

MACHINE FOR SHAPING BANDS.

APPLICATION FILED NOV. 2, 190a.

Patented 0012.27, 1914.

11 SHEETS-SHEET 3.

MAKE/V7175. 6W 5% THE NORRIS PErERS C0 FHDTU LlTH-L, WASHINGTON, D. C.

MA mm 6 4 z 2 5 mm mm 5 Q :1 n .GW. fi v w Wm w mm m ,PJL i 8 6 4 Wm mm W 7 m M a $0 5. M 3%: w Mm M J m K 4 Z J 7/ 4 m 0 v w 7 v. 9 MW H WK w Z W F9 o m n0 5 0 0 a 1 Z0 M 747* 7 1 Zflflfl w F K M w 0,, WASHINGTON. z) 4- E. A. TRIPP.

MACHINE FOR SHAPING BANDS. APPLICATION FILED NOV. 2, 1908.

Patented Oct. 27, 191 1.

11 SHEETS-SHEET s.

WWW S5551 flf/bqwthg Vamp-La:

THE NORRIS PETERS 60.. FHDTO-LITHJ.. WASHINGTON D A. TRIPP. MACHINE FOR SHAPING BANDS.

APPLICATION FILED NOV. 2, 1908.

Patented Oct. 27, 1914 11 SHEETS-SHEET 6.

E. A. TRIPP.

MACHINE FOB. SHAPING BANDS.

APPLICATION FILED F012, 1908.

1,1 1 5,037. Patented 001;. 27, 1914.

ll SHEETS-SHEET 7.

W/77VESSES //vv/v 747/1 E. A. TRIPP.

MAGHINBFOR SHAPING BANDS. APPLICATION FILED NOV. 2, 1908.

1,1 1 5,037. Patented Oct. 27, 1914.

11 SHEETSr-SHEET 8.

W i M X m me- 41s THE NORRIS PET RS (70.. PHo'IO-LITHQ. WASHINGTON D. c

E. A. TRIPP.

MACHINE FOB SHAPING BANDS.

APPLICATION FILED NOV. 2, 1908.

Patented Oct. 27, 1914.

ll SHEETSSHEET 9.

E. A. TRIPP.

MACHINE FOR SHAPING BANDS.

APPLICATION FILED 11017.2, 190s.

Patented 0013.27, 1914.

ll SHEETS-SHEET 10.

Fig". 25.

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W/T/VES'SES.

K5 A um/4 6524/1144! 3 THE NORRIS PETERS 60.. PHOTC LITHQ, WASHINGTON, D c.

E. A. TRIPP.

MACHINE FOR SHAPING BANDS.

APPLICATION FILED NOV. 2, 1908.

Q 1,1 15,037. Patented 061;. 2.7, 1914.

11 SHEETS-SHEET11.

THE NORRIS PETERS 60., PHOTOJJTH n WASHINGTON, D. C.

mortain UNITED STATES PATENT OFFICE.

ELIPHALET A. TRIPP, OF BEVERLY, MASSACHUSETTS, ASSIGNGE TO UNITED SHOE JERSEY.

To all whomit may concern:

Be it known that I, ELIPHALET A. TRIPP, a citizen of the United States, residing at Beverly, in the county ofEssex and Commonwealth of Massachusetts, have invented Improvements in Machines for Shaping ands, ofwhich the following description. in connection with the accompanying d swings, is a specification, like reference characters on the drawings indicating like-parts in the several figures.

This invention relates to machines for imparting a predetermined shape to articles of leather. and more particularly to mazhinesfor "iving rand strips a form adapted to peri: it them to be conveniently attached to heels.

is is WhdillOWD, rands used in the manuture of boots and shoes are strips of leather whlh taper transversely to a thin edge. It is a common practice in the art to prepare th'; rands for the use for which they are intendedby giving them approximately the curved contour which is their final shape when attached to heels. This is efiected by bending the rand strip in the plane of the strip into a curved form adapted to facilitate its subsequent attachment.

The primary object of the present invention is to provide an eflicient machinefor imparting to rands a contour of this nature.

The machine herein shown and described is constructed to bend the ends of a rand strip together in the plane of the strip and thereafter to flatten the corrugations formed upon the inner thin edge of the strip in the bending operation. Heretofore machines which have been designated to perform these two operations have been so constructed that the bending operation and the flattening or molding operation have been carried on at the same point in the machine and the de -V vices for performing the two operations have had elements in common.

An important feature of the present invention consists in independent means for performing these two operations. By rendering the means for performing the bend ing operation independent of the means for molding the bent rand greater freedom is permitted in the choice of devices for performing the two operations than has been possible in prior machines. Not only is the quality of the work improved which is performed by the machine but also the machine Specification of Letters Patent.

Application filed November 2, 3.908.

NEVI JERSEY, A CORPORATION OF NEW 7 MACHINE SHAPING RANDE.

Patented Oct. 27, 1914.

Serial No. 460,727.

is made considerably more rapid in its operation. While so far as the feature above rererred to is concerned it would be wlthin the present invention to employ any suit able means for performing the bending operation and any suitable means for performing the molding" operation, the devices here-.

in shown and described for performing these two operations respectively present a number of features of novelty. It will be understood that while these two sets of devices are broadly and specifically adapted for conjoint use they are not limited to such use. i

The means for bending a rand strip preliminary to the molding operation comprises,

strip progressively bends into shape suit able to permit of its application to the heel of a boot or shoe. According to a convenient construction the formers are arranged on a support upon which the rand strip rests in the bending; operation and the gripping means is arranged to automatically grip the strip and to advance it laterally against said formers With its thick edge foremost so that the strip is bent into a substantially U shape as it advances between the formers. In order to prevent distortion of the rand in the bending operation there is provided a presser which is mounted upon the support and provided with an acting surface arranged, between the formers and adapted to bear upon the top surface of the rand and press it against the support in said bending operation. The presse-r is preferably arranged to be automatically raised from engagement with the top surface of the rand to facilitate withdrawal ofithe bent rand from the rand bending mechanism.

It is sometimes desirable in forming rands that the ends of the rands be bent quite close together in the bending operation. Inone embodiment of the invention this result is effected by arranging the rear ends of the formers for automatic approaching move ment as the'ends of the rand move between said rear-ends ofthe formers. This movement is arranged to take place after thep 'esser has been raised from engagement with the topsurface of the rand to avoid any interference between the forniersand hresser. 1

The molding inechanisni herein shown comprises a diero'ller-and a presser roller arranged to cooperate in molding a substantially U-shaped rand. The die roller is pro vided with a cavity arranged to receive a rand that is fed to the rollers with its rounded end foremost. Th cavity in the die roller is of such form that the corrugations upon the inner ,or thin edge of a U- [shaped rand within the cavity are progressively smoothed out'as said rand'passes between the rollers. By the provisionof this cavity the ends of the rand are prevented from springing apart 1 during the molding operation so that the rand is molded in the shape that has been given .to it by the'rand bending mechanism. According to a preferredgconstruction the presser roller is yieldingly held toward the die roller with to the rollers. After the rand has been bent into a substantially U shape the gripping means is arrangedto release the rand automatically and thereafter the carriage is automatically moved to present the rounded end of the rand to the rollers at such timethat said rand will be received within the cavity in the die roller. By presenting the rands to the rollers with their rounded ends foremost a more uniform and perfect presenta- 7 tion is effected than would otherwise be the case.

rands and a transferrer arranged to receive a finished rand and automatically deliver it- ;to the magazine. As in the machineherein' disclosed the rands are subjected to a molding operation after they are bent into U shape, the transferrer is arranged to receive a molded rand from the molding mechanism, and deliver it to the magazine. It is, however, wit-hinthe present invention to provide a machine for forming rands in which a .transferrer is arrangedto receive a rand directly from a rand bending mechanism and deliver it toa magazine. In the embodiment of the invention herein described the molded I rand is received upon a table and the transj ferre'r is provided with jaws arranged to automatically grip the rand upon opposite A further feature of the invention comprises a magazine for receiving the bent sides and transfer it to themagazine which is preferably arranged upon the upper part of the machine.

Although the construction of machines 1 embodying the present invention may be i such that rand strips may be fed directly to the rand bending mechanism, yet the invene tion is further concerned with means which is arranged to receive arand strip and deliver it I to the rand bending mechanism. To this end "in the'present embodiment of the invention there is provided a carrier which is arranged for movement between a receiving position,-

in which the operator may conveniently supply it with a rand strip, and a position in. which it automatically delivers the rand strip to the gripping means of the rand bending mechanism. The construction is preferably such that the strip is stretched longitudinally as the carrier Inovestoward.

its delivering position in order that any wrinkles which may have formed in the strip may be smoothed out before it is delivered to the gripping means.

v In addition to the features of invention above described, the present machine enibodies certainnovel features of construction and arrangement ofparts, the advantages of which willbe-obvious to those skilled in the art from the following description.

In the drawings,Figure 1 is a view in side elevation of a machine embodying the present invention; F g. 2 is a rear elevation ofthe. machine shown in Fig. 1; Fig. 3 is plan view. of aportion of the machine; F g.-

tis a sectional view taken on the line 4 4 of Fig. 3-; Fig. 5is a sectional view takenon a line extending centrally from front to rear of the machine. Fi 's. 6 and 7 are sec- 7 b tional views of the presser roller showing the hook-shaped member [and its actuating mechanism; Fig. 8' is a view in perspective of a portion of the machine; Fig. 9 IS a sectional view of the carrier; Fig. 10 is a detail view partly iii section of the carrier; Fig. 11.. is a view in side elevation showing the carrier' in its receiving position; Fig. 12 is a perspective view of a portion ..of .the machine showing the construction by which the bridge and pres-ser are secured in their oper modified portion of the machine showing the rear ends of the formers in their outer positions; Fig. 14 is a view similar to- Fig. .13 showingthe rear ends of the formers after a they have been moved toward each other to bend the ends of the rand close together;

Figs. 15,16, 17 and lSar-e plan views showinga rand in difierent stages ofthe bending operation; Fig. 19 is a perspective-viewof q a rand strip, and 'Fig. 20 is a perspective A view of a U-shaped rand; Fig. 21 isa view partly in section showing a detailof con-"[ struction; Fig. 22 is a perspective view of the presserfFig. '23 a perspectiye view of- .115 ative positions; Fig. 13 is .a plan view of a portion of the dieroller showing the removable matrix; Fig. 2% is a view partly in section of the transferrer; Fig. 25 is a view in perspective of the transferrin mechanism and its actuating means; Fig. 26 is a view in perspective of the transferrer in its inclined rand receiving position, showing the mechanism for tripping the catch of said transferrer: Fig. 27 is. a perspective hook-shaped member taken on a line extending through the pivot of said hookshaped member in a direction at right angles to that radius of the presser roller which extends through said pivot; Fig. 29 is a view in perspective of the hook-shaped member and its actuating mechanism; and Fig. 30 is a perspective view of the removable section which carries the hook-shaped member.

Referring to the drawings, 2- designates the power shaft which is journaled within a tubular shaft t rotatably mounted in bearings (3 supported upon the frame of the machine. A driving pulley 8 is supported upon the end of the shaft 2 and is arranged to be clutched thereto by a clutch mechanism 10 which may be of any suitable construction. The clutch mechanism is arranged to be thrown into operation by a treadle 12 which is connected by a link 1% with one end of a lever 16 pivot-ally sustained intermediate its ends upon the frame of the machine, The other end of the lever 16 is connected with a link 18 which is ar ranged to control the operation of the clutch mechanism. A sprin 20 extending between the frame of the machine and the treadle tends to hold the clutch mechanism in its inoperative position. A gear 22 fast upon the power shaft 2 meshes with a larger gear 2i journaled upon a stud 26 extending from the frame of the machine. A small gear 28 also journaled upon the stud 26 and arranged to rotate with the gear 2% meshes with a gear 30 secured upon one end of the tubular shaft d. The gear 80 meshes with an idler 32 which is journaled upon a stud 33, extending from the frame of the machine, and is arranged to drive a large gear 3i secured upon the outer end'of one of the trunnions 86 of a roller shaft 38 that is horizontally mounted in the upper part of the machine inbearing blocks 40, Fig. 5, which are respectively arranged in vertical guideways #22 formed in the side members n of the frame of the machine. Upon the other end of the tubular shaft d is secured a gear 46 of the same size as the gear 30 arranged to mesh with a gear s28, which is equal in size to the gear 3%, and is secured upon the outer end of one ofthe trunnions 50 of a second roller shaft 52 that is horizontally mounted beneath the roller shaft 38 in bearing locks 5% arranged in the guideways $2. The lower bearing blocks 5% are provided with depending tubular members 55 in which the upper ends of rods 56 are respectively secured by threaded engagement. The lower ends of the rods 56 rest upon brackets 58 respectively secured to the side members 4st and said rods 56 are constructed to be adjusted to properly locate the position of the lower roller shaft. In each of the upper bearing blocks a0 is threaded a bolt 60 arranged to respectively engage the upper surface of the correspond ing lower blocks 54 to limit approaching movement of the blocks and formed to be adjusted to permit the normal distance between the roller shafts to be varied. The roller shafts 52 and 38 carr T respectively a die roller 62 and a presser roller 6%, to be hereinafter more particularly described, between which a bent rand may be molded as it passes between the rollers.

Upon the side members 4% of the machine is secured bracket 66 which carries a fiat horizontal bed 68. Formed in the sides of an opening extending from front to rear of the bed are ways 70 upon which a carriage 72 having a flat upper surface is mounted to slide, Figs. 3 and 8. A rectangular opening extends from the front of the carriage to its rear and the two sections tnus formed are united by an arch-shaped member 74 which extends over the opening at its front portion. In the two sides of the rectangular opening are formed grooves 7 6 which receive respectively the tongues 7 8 which pro ject from opposite sides of a slide 80. i The slide 80 is provided with means for gripping a rand at a portion adjacent its middle and is arranged to advance the rand along the carriage with its thick edge foremost. In the construction herein shown the slide is provided with corrugations 82 upon which the middle portion of a rand may rest and a corrugated gripper 84 is arranged to come down upon the rand and clamp it in engagement with the slide and thereafter to advance the rand and slide along the carriage. The corrugated gripper 84: is pivotally mounted intermediate its ends upon a pin 83 extending transversely of the inner end of a gripper bar 85 which extends longitudinally of the slide and is providedwith a guide slot 86 and a cam slot 88, Figs. 8

and 21.

Extending upwardly from the slideupon opposite sides of the gripper bar are two plates 90 between which are journaled a guide roller 92 and a cam roller 94 which respectively enter the guide slot 86 and the cam slot 88 of the gripper bar. The cam slot 88 is so shaped that as the gripper bar the bracket 66.

is moved toward the rear of the machinethe gripper 84 is forced down upon a rand thatis supported upon the carriage with its middle portion resting upon the corrugations on the slide. After the rand has been clamped in engagement with the slide by the gripper 84 further movement of the gripper barcauses the rand and the slide to bemovcdftoward the rear of the machine. YVith thisconstruction it will be seen that as the force for advancing therand is transmitted through the means for clamping the randin position upon the slide the randis gripped with a pressure that is proportionate to the resistance offered to the movement of the slide.

The gripper bar 85 is arranged to be automatically actuated to advancethe rand and thereafter to be retracted by means of a cam disk 96 which is secured upon one end of one of the trunnions 50 of the lower roller shaft 52. To this end a cam slot 98 formed in the outer face of the disk receives a cam roller 100 carried by the upper end of a lever 1.02 which is secured at its lower portion to one end of a rock-shaft 104 that is horizontally' arranged in bearings formed in The lower end of a lever 106, Fig. 5, is secured upon the shaft 104 at its central portion, and a link 108 has one end pivotally connected with the lever 106 and its other end carries a stud 110 adapted to be clamped in adjusted position by a nut1l2' in a slot formed in the middle portion of a lever 116 that is secured at its lower end upon a horizontal rock-shaft 118 journaled in bearings formed in the bracket 66. The upper end of the lever 116. carries two ears 122, Fig. 21, which are provided with longitudinal slots 124 adapted to respectively receive blocks 126 that r are formed to slide in the slotsand provided with flanges 128-adapted to engage the outer surface of the ears 122. The outer end of the gripper bar 85 is pivotally sustained between the blocks 126 by a pin 130 which extends through the gripper bar and said blocks. As will appear from an inspection of Fig. 1, the cam slot 98 is SO'fOllTlGCl that the gripping means remains in its forward or rand-receiving position for a time corresponding to that requ red for about of a revolution of the cam disk 96, so that sufiicient time is allowed to feed a rand strip to the gripping means before the latter starts on its rearward movement.

To cause the ends of the rand strip to be bent together as the strip is advanced along the carriage, formers are positioned on the carriage upon opposite sides of theslide and arranged to be engaged by an edge of the strip. The formers extend longitudinally of the carriage and are of a thickness a little greater than the thickness of the rand and are provided with rand-engaging surfaces formed and arranged to cause the randstri-p to progressively bend into a substantially U shape as it is advanced between the formersfi. In the machine herein disolosed, the formers are made in two sectlonsa Asshown in the drawings, the forward section 134 has a rand-engaging surface extending at an angle of substantially 45 with the line of movement of the rand and the rear section 136 has a rand-engaging surface substantially parallel with the line of movement of said rand. In the embodiment of the invention illustrated in Figsh15 to 18 inclusive, the sections of the formers are rigidly securedto the carriage'asz-by ma-,-

chine screws-extending through. said sections into the carriage.

' In order to prevent distortlon ofthe rand I" in the bendingoperation, there is provided a presser 138 which has a flat acting surface adapted to bear upon the .top surface of a rand in said operation; The presser 138 is arranged between two vertical plates 140 which are integral with the carnage and arranged longitudinally thereof upon its.

opposite sides outside of the formers. The

forward end of the presser 138 is pivotally sustained between the plates 140 in such manner that the forward part of the acting surface 1s positioned above the carriage a distance somewhat greater than the thick- 7 .ness' of therand. As shown in Figs. 8 and 22 the acting portion of the presser comprises rand-engaging parts 142 which are positioned between the formers and upon opposite sides of the line of movement of the gripper -84. An opening extends through the presser which is arranged to permit .the gripper 84 to pass between the parts 142 in the rand-bending operation. Extending from the upper part of the outer edge of the parts 142 are flanges 144 which" are respectively adapted to bear upon the top surfaces of the sections 136 of the formers to limit the downward movement of the presser. A bridge 146 is arched over the presser and its two ends are provided with horizontal shoulders which rest upon the upper surface of the plates140, as shown in Fig. 12. The ends. of the bridge 146 are secured to the plates 140 as by means of machine screws extending through said ends into said plates.

in an opening formed in the upper central A thimble 148 is secured i portion of the bridge and is arrangedwith its closedv end in proximity to the upper with the upper surface of the presser, and a i I spring 152 extending between the head of the pin and a cap 154 screwed into the open:

end of the thimble serves to yieldingly hold n0 presser when a rand is not beneath said the acting parts 142 of the presser in engagement with the top surface of the rand during the bending operation.

After the completion of the rand-bending operation the gripping means is arranged to automatically release the rand during an initial portion of the retraction of the gripper bar. There is accordingly provided means for preventing the slide from immediately following the gripper bar when the latter is retracted so that the relative movement thus obtained between the slide and gripper bar will cause the inner end of the gripper bar to be raised through the medium of the cam slot 88 and cam roller 94: and thus raise the gripper 8% from engagement with the rand. To prevent the slide from immediately following the gripper bar there is provided means for frictionally resisting the movement of the slide in the guideways formed in the carriage. To this end a portion of one of the tongues 78 is cut away by diagonal cuts as shown in Figs. 8 and 21, and in the recess thus formed are arranged two blocks 156 and 158 which are held apart by a spring 160 and are provided with end surfaces that are respectively parallel with the diagonal surfaces of the said tongue. vVith this construction, it will be seen that the spring 16.0 tends to wedge the tongue upwardly against the upper surface of the groove 76 and to force the blocks against the lower surface of said groove whereby a frictional resistance is offered to the movement of the slide. It will be seen in the present construction since, as previously explained, the gripping mechanism is constructed to grip a rand strip with a pressure proportionate to the resistance that is ofiered to the forward movement of the strip that the provision of means for frictionally resisting the forward movement of the slide insures that the strip will be more firmly gripped during its advance movement than would otherwise be the case.

After the gripping means has released the rand. the carriage is arranged to be auto matically advanced to present the rounded end of the bent rand to the rollers 62 and 64. To effect this movement of the carriage a cam slot 162, formed upon the inner side of the cam disk 96, receives a cam roller 16a mounted upon the upper end of a lever 166 which is secured at its lower end to a rockshaft 168 that is horizontally journaled in bearings formed in the bracket 66. A lever 170 is secured at its lower end to the rockshaft 168 and its upper end is connected by a link 172 to a projection depending from the carriage 72. As indicated in Fig. 1 of the drawing the cam slot 162 is so formed that the carriage remains stationary during the. rand-bending operation and upon the completion of said operation and after the gripping means has released the rand the carriage is advanced to present the rounded end of the rand to the rollers 62 and 64 and is thereafter moved back to its original po- Sition.

To facilitate the delivery of the bent rand to the rollers, the presser 138 is arranged to be automatically raised from engagement with the top surface of the rand as said rand is being grasped by said rollers. To this end in thepresent machine, cam surfaces 176. Fig. 8, formed upon the opposite ends of the roller 62 are engaged by cam rollers 178 mounted upon horizontal studs 179 extending outwardly from the ends of levers 18%) that are pivoted at their opposite ends about horizontal studs 182 secured between ears 18% which respectively extend upwardly from the sections 136 of the formers and are rigidly secured thereto. The presser 138 is provided upon opposite sides with projections 186 which respectively extend over the levers 180 and are in contact therewith whereby upward movement of the levers 180 under the influence of the cam surfaces 1'76 will swing the presser upwardly about its point of pivotal support. The cam surfaces 176 are so formed that in the randbending operation the spring 152 is allowed to hold the presser in yieldin engagement with the top surface of the rand. Upon the completion of this operation, and after the advance movement of the carriage has taken place, the presser is raised to facilitate the delivery of the rand to the rollers 62 and 64 and thereafter the presser is returned to its lower position.

in the modification shown in Figs. 13 and 14, the sections 136 of the formers are con structed and arranged to automatically approach each other as the rand is being fed to the rollers 62 and 61 in order that the two ends of the rand may be bent quite close together before said ends pass between the rollers. According to a convenient construction the sections 136 are pivoted at their forward ends upon vertical studs 188 secured in the carriage 7 2. The forward ends of the sections 136 are curved in convex form and have centers of curvature which respectively coincide with the centers of the studs 188. The rear ends of the sections 131 are formed to fit the forward ends of the sections 136 whereby pivotal movement of the sections 136 is permitted about the studs 188 as centers. To move the rear ends of the sections 136 toward each other c m slots 196 are formed in the opposite ends of the roller 62 and arranged to receive cam rollers 192 mounted upon vertical studs 19%. secured in the ends of the levers 180. Each of the sections 136 is provided with upwardly extending projections 196 and 198 arranged to have engagement with the opposite sides of one of 6 136 and at the same time said levers are adapted to have an independent vertical swinging movement about the studs 182 to raise the presser from engagement with the;

top surface of the rand in the manner previously described. The relative timing of the cams which raise the presser and the cams which move the sections 136 of the formers together is such that the acting parts 142 of the presser are raised from the path of the sections 136 prior to the approaching movement of said'sections. The cam slots 190 are so formed that in the initial part of the rand bending operation the sections 136 remain as shown in Fig. 13, substantially parallel'with the line of movement of the rand. After the presser has been raised so that its acting parts 142 are removed from the path of-the sections 136, and as the rounded end of the rand is seized by the rollers 62 and 6d the sections approach each other to bend the two ends of the'rand together. If desired the approaching movement of the sections 136 may be of a su flicient extent to cause'the two ends of the rand to overlap each other in the manner shown in Fig. 14 of the drawings. The form of the cam slots 190 is further such that after the ends of the rand have passed between the rollers the sections 136 are moved away from each other to their original positions.

The lower roller 62 is provided with a removable matrix 200 in which is formed a die cavity 202 which is substantially the shape of a U-shaped rand. The matrix 200 is so arranged in the rollerthat when the carriage 72 advances to deliver a rand to the rollers with its rounded end foremost said rand 1 'ill be received within the die cavity in said matrix. As the rotary movement of the lower roller 62 is correlated with the movement of the carriage 72 by means of the mechanism previously described, it will be noted that the rounded end of the rand will always be presented to the rollers at such time that the rand will be received within the matrix in the lower roller.

As shown in Fig. the cavity 202 progressively increases in depth from its middleiportion to its sides and curved end in such manner that the inner or thin edge of a rand within the'cavity may be subjected to the molding action of the rollers whereby the corrugations which are formed in said edge inthe rand-bending operation may be progressively smoothed out as the rand passes between the rollers and thus insure that the rand will remain in the form,

that has been given to it by said bending mechanism.

is held yieldingly toward the lower-rollen'.

In thepresent machinev the upper roller ;65

For this purpose springs 20% (Fig. 2) are.

interposed between the bearing blocks l -:0.

and disks 206 secured upon bolts 208 .that;

are adjustably secured inthe tops of cas-v ings 210 arranged upon opposite sides ot the top plate 212 which is bolted to theside i members M of the machine. 3 With this, con i.

struction the amountot pressure with which the two rollers are yieldingly. held together maybe such that the corrugations upon. the

inner edge of a bent rand may be smoothed 2 out without an excessive pressure beingim parted to the edges of the rand such as Furthermore it willbe. noted that where the k i pressure is yieldingly applied in the mold- V would decrease thethickness of the rand.

ing operation it does not materially-vary with randsof different thicknesses. respect the present machine is an improve. ment upon prior. devices in which the pres sure has been applied positively to perform the molding operation so that these devices have not been adapted to. mold rands of diflerent thicknesses with a substantially uni form pressure. a v

' corrugated roller 214,]Figs2 and 25 is supported upon a shaft2'l6-in proximity to i the presser roller .in such position that a molded rand may be deliveredbetween the. corrugated roller and said presser roller.

The shaft 216 is provided at one end with a j pinion 218 whichmeshes with a gear 220,

upon the upper roller shaft 38 so that rotary movement I is imparted to the corrugated roller in adirection opposite to that of the presser roller. The shaft2l6 is mounted in bearings 222 arranged upon opposite sides of the corrugated roller andYsecured upon the bar 226 and-respectively receivedin sockets:-

ends of rods 224 which are connected by a formed in a plate 230 that i's bolted to the back plate of the machine. The lower end portions ofthe rods 224 are reduced in size I.

so as to form shoulders Fig. 5 and springs 23% are respectively arranged upon said ref duced end portions and have their. upper ends in engagement with said shouldersand their lower ends in engagement with the bot i toms of said sockets. With this construction it w ll be seen that the corrugated roller is y gly pressedtoward the Presser sothat rands of different thicknesses maybe pressed between said rollers and deliveredb reduced ends of the rods 22 i extend through from the molding -me chanism. The lower openings formed in the bottoms of the sock ets and areprovided with heads 236 adapted to engage the plate 230 and limit upward movement of the corrugated roller. A table 238 pivoted at one end upon'the sha'ft216; d rovided with a fiat upper surface is z 7 adapted to beheld in an inclinedrandre ceiving position as shown in dotted lines in Fig. 5 by mechanism to be hereinafter described.

Arranged within a removable section 240 of the presser roller is a hook-shaped member 242, the heck of which is arranged to be automatically projected at a predetermined point in the rotation of said roller through an opening in said section and into a slot 244 in the matrix 260, which opens into the mold cavity at the center of its rounded end. Thereafter the hoolrshaped member is moved so that it engages the rand upon the under surface of its rounded end and presses it in engagement with the presser roller. The rounded end of the rand being thus held in engagement with the presser roller, it will be seen that rotation of the presse roller will cause said rounded end to be carried between the corrugated roller and said presser roller, a slot 246 being formed in the corrugated roller at its central portion to permit the end of the hook-shaped member to pass th rethrough in this movement of the presser roller.

After the rounded end of the rand has been held in engagement with the presser roller a su'r'licient time to insure its subsequent passage between the corrugated roller and the presser roller, the heel: is arranged to release the rand and to be retracted within the opening in the section 2&0 of the presser roller. As shown upon the drawings the section 240 is recessed in its periphery to receive a cover plate 218 which is corrugated upon its outer side in order to more securely grip a rand that is fed to the rollers. According to a convenient construction a recess, formed in one of the sine faces of the section 240, is arranged radially of the presser roller and is provided, as shown in Fig. 30, with a flat side 250 and flat edges 252 and 254.. A slide of less width tl an the recess is arranged with one of its sides in engagement with the flat e go 252 and a stud 260 carried by said slid extends into a slot 262 formed in the fiat side 250. The hook-shaped member is pivoted upon the stud 260 and is provit ed with gear teeth 262 which mesh with teeth that are arranged upon the inner edge of a slide 266 which is formed to slide in the recess between the flat edge 25%, and the slide 256. As shown in Fig. .29 of has a portion,

the drawings, the slide 266 overlapping the slide 256, which is adapted to have sliding engagement with a marginal flange 268 formed upon the slide 256. The outer surfaces of the slide 266 and the marginal flange 268 are flush with the section 2&0 so that when said section is inserted within the opening in the presser roller lateral displacement of the slides is prevented by engagement of said slide 266 and said flange with a side of said opening.

A rod270 is rigidly secured at its outer end to a bracket 272 carried by the frame of the machine, Fig. 2, and extends into an opening formed centrally 0f the roller shaft 38. Upon the inner end of the rod 270 are rigidly secured cam disks 274C and 276 which are respectively arranged for engagement with lugs 278 and 280 carried by the slides 256 and 266. A spring 286 having one end received within a socket in the slide 266 and its other end bearing against a plate 287 extending partly across the mouth of the recess in the section 240 tends to press the slide 266 toward the cam disk 276.

The cam dislr27 i is so formed that normally in the rotation of the presser roller the slide 256 is held in its outer position in which the stud 260 engages the outer end of the slot 262 and the cam disk 276 is so formed that normally the slide 266 is held in its outer position so that the hook-shaped member is within the recess as shown in Fig. 6. As shown in Figs. 6 and 7 the contour of the cam disk 276 is further such that when in the rotation of the presser roller thhooh-snaped member arrives at such position that it may be projected into the slot 2% of the matrix to engage the under surface of a rand in the cavity 202, the slide 266 is allowed to move inwardly under the influence of the spring 286 so that the hooked member is swung about the stud 260 through the medium of theintermeshing teeth 262 and 264 into a position in which its hooked end is beneath the rounded end of the rand in said cavity. The form of the cam disk 27% is such that after the hookshaped member is swung into position in which its hooked end is beneath the rand. the slide 256 is free to move inwardly and further swinging movement of the hookshaped member is now restrained the spring 286 movesthe hook-shaped member 242 and slide 256 inwardly so that said hooked end yieldingly presses the rounded end of the rand against the presscr roller. After the rounded end. of the rand has been helda sufficient time in contact with the presser roller to insure its subsequent passage between the corrugated roller and said presser roller, the slides 256 and 266 are forced outwardly so that the hook releases the rand, the slide 266 being moved farther than the slide 256 so that the relative movement thus produced between the teeth 262 and 264 swings the hook-shaped member back to its original position within the recess. It will he noted in the construction shown that the rook-shaped member assists also in dislodgmg the molded rand from the mold cavity in the die roller.

The rand is fed by the corrugated roller and presser roller upon the table 238 when the latter is in the inclined position shown segmental gear 306 carried by said 'trans-- ferrer. As indicated in Fig. 5,"the above movement of the transferrer is such that it may be moved between a lower inclined xpo-' 3O in dotted lines in "Fig. '5. transferrer 288 is arrangedlto automatically transfer the molded rand from the inclined table to a magazine 290 supported upon the top plate.

212, of the machine. The "transferrer is ries a stationary segmental gear 304 arranged to mesh with a segmental gear 306 formed upon the plate 29%. The tubular member 302 is'clamped intermediate its ends within a split clamp 3017 which is secured to the top plate of the machine.

WVith'the above construction, it will be seen.

that swinging movement imparted to the transferrer aboutthe shaft 300 will cause a simultaneous turning of the transferrer about the stud 296 through the agency of the stationary gear "segment 304: and the sition in which its flat portion 292 is directly over the top surface of a rand supported upon the inclined table 238, and an upper'verticalposition from which it may deliver a'rand to the magazine.

Pivoted Tupon opposite sides of the Hat portienf292 are arms 308' which are provided'withbent ends 310 formed to grip and sustain a U-shaped rand between them by engagement with its opposite sides. The.

arms 308 are-also provided upon adjacent faces with teeth 312 arranged to respec tively mesh with teeth formed upon oppo-f site sides of a rod 314 which extends be-1 tween said armsand is slidin'gly mounted in' a cylindrical opening arranged in the plate 29-4 longitudinally of said arms. A spring '316, having one end received in a socket formed in'the rod 314 and its other end within a socket formed in the plate 294, yieldingly-presses' said rod so that the arms tend to approach each other. The arms308' are: automatically opened to release the rand and thus permit its delivery to the maga-v zine by mechanism to be hereinafter described. A spring-pressed catch 318 pivote'd intermediate its ends between ears extending from the plate 294 has a curved end 320 arranged-to engage a notch 322.1111 the rod 314 so as to lock the armsin their open position. When the transferreris in its rand-engaging position in whichtheflat" portion 292 is directly over thetop surface of a rand supported upon the table,the bent:

ends 310ofthe'arms are 'adapted'to respec- .t ively project intomarginal slots 324; that are formed inopposite sides of said table.

It will be seen that the pro-vision of the slots 3 24 allows the bent ends of the armsto be .movedtoward' each otherby the spring lease said arms.v The catch is tripped by 316 after the catch has been tripped'to remechanism automatically actuated by the upper roller-so that thebent ends of the 1 C arms engage the rand. 1 To this end a block 326 having an inclined cam surface is se-, cured 'to the side face of the presser roller I 111 such position that the cam surface is adapted to engage a roller 328 carried by one end of aIl'ever 330 26) and impart a i lateral swinging movementto the lever about a stud'332 which depends from the frame of the machine and nivotally sustains said leaver at its middle portion. The other end of i the lever'330 .is arranged to engage a pro-,

jecting end of the catch318insuch manner that swinging movement imparted to the leer by the presser roller will trip the catch saiand thus'allow the arms '308 to approach each other and grasp the rand.

After the rand has been engaged by the bent endsof the arms thetable 1238 is arranged to be automatically swung downwardaboutiits pivot out of the path of. the transferrer in order that the latter may be .free to swing the rand upwardly into the magazine. In the present machine a link 334, Fig. 5,'has its upper end pivoted to: w

an ear secured 'to'the tableata portion ad-- jacent its middle and its lower end pivoted p1 to a crank arm'336 secured upon the end of I arock-shaft 338 that is journaled in 'a bearing 34:0 carried by the back plate of the maf chine. Upon the other end of therock-shafft 338 is secured anarm-34t2 which carries cam .roller 344C thatv is held toward theiroller shaft 52 by means of a spring 346 extending between said arm and the frameof the maj chine. A-cam 348 secured .to the roller shaft 52 is arranged to engage the cam roller j: v1 0 q and raise the table into its 11 1 81 positionv at thetirne that a rand is-about to be delivered upon said table. As shown in 'Fig.t25, the;

form of the cam 3&8 is such that the table is held in its upper'inclined position for a sufficient period of time to permit a molded' randto be advancedalong thetable to a po'-, sition' in which its sides may be gripped by I the arms "308." After the arms 308 have gripped'the rand in the mannerpreviously described, the cam 348 has "moved into such position'thatthe spring 3&6 is freeto no've thettable into its lowerxposition in which it is removed fromthe path of the transferrer so that .the latter may deliver the rand to" a 2 125 To move the'transferrer between its rand;

the magazine.

receiving and rand-delivering position, pinion 350 formed upon the end of the shaft 300 is arranged to mesh with a rack 352 that is pivoted at its lower end to one arm 354 of a bell-crank lever rotatably mounted upon the rockshaft 338. 'The other arm 356 of the bell-crank lever is connected with one end of a link 358 which is adjustable in length and is pivotally secured at its other end to a crank arm 360 carried by the rock shaft 104.

The above described mechanism for actuating the transferrer is constructed and arranged to move said transferrer into its.

rand-receiving position prior to the time that the table is raised into its upper posie tion. This arrangement obviates any liability of interference between the transferrer and the table when said transferrer swings into its rand-receiving position. After the rand has been gripped by the arms 308 and the table has been moved into its lower position out of the path of the transferrer by the mechanism previously described the transferrer is swung upwardly into its randdelivering position.

The magazine 290 which receives the U- shaped rands consists of a trough-shaped receptacle which comprises upper parallel rods 362 arranged to engage the opposite sides of the rands at points adjacent their fiat ends and lower parallel rods 36& arranged to engage the opposite sides of the rands at points adjacent the middle of said sides, as shown in Figs. 2 and 5. The rods 362 and 364 are secured at each end to substantially U-shaped end members 366 which are mounted upon a rod 368 secured in a clamp 370 attached to the top plate of the machine. The magazine 290 is so arranged upon the top plate of the machine that when the transferrer is in its rand-delivering position the rand carried by it will be positioned in the end of the magazine with its sides in close proximity to the rods 362 and 364 so that when the arms 308 of the transferrer release the rand through the agency of the mechanism to be hereinafter described the sides of the rand will spring in engagement with said rods owing to the resiliency of said rand. After the rand has been released each of its sides has frictional engagement with one of the rods 362 and one of the rods 36 i so that the rand is sustained in a substantially vertical position between said rods. A plate 372 is grooved upon its opposite sides to slide between the rods 362 and 364: and is constructed to offer frictional resistance to movement longitudinally of the magazine. The plate 372 is moved by hand toward the rand-receiving end of the magazine prior to the delivery of the first rand thereto. The first rand delivered to the magazine engages the'plate and forces it back. As each rand is inserted in the magazine the previously inserted rand is pushed farther back, the plate 327 yielding to per mit this movement, so that the rands accumulate in the form of a stack within the magazine. The sliding plate is of assistance in preventing displacement of the rands and also causes the rands to become closely packed within the magazine.

The magazine for opening the arms 308 of the transferrer to deliver a rand to the magazine is arranged to be automatically actuated from the presser roller. According to a convenient construction aprojection 382, Figs. 2 and 27, extending from the top plate of the machine carries a horizontal stud 384: upon which one end of a lever 386 is pivoted. The lever 386 is held toward the top surface of the projection by a spring 388 and the free end of the lever 386 is arranged to extend partly under the lower end of the rod 314.

A pin 390 is mounted to slide in a vertical opening in the projection and is provided with a head, adapted to limit itsdownward vmovement which is arranged beneath the lever 385. A block 392 secured to an end of pin 390 is transmitted to '8 Where rands are fed directly to the grip- I ping means of the rand bending mechanism, as in the embodiment of the invention shown in Fig. 8 there is preferably provided means for assisting the operator in properly positioning the rand strip upon the carrier. For

this purpose an arch-shaped member 394 is detachably secured to the front face of the bridge 146 by pins 396 which extend from said member and enter openings formed in the bridge in which they are secured by V clamping screws 398. In the opposite ends of the arch-shaped member 394 are pivotally mounted vertical rods 400 to the lower ends of which are secured fingers 402 which normally extend toward each other trans a versely of the hne of movement of the rand.

The fingers are held in this position by means of torsional springs 40% which surround the rods 400, each of said springs havin one end secured to said rods and its M 3 other end to the arch-shaped member. With this construction in feeding rands to the gripping means the rand is placed transversely of the carriage with its thick edge in engagement with the fingers so that the rand M, 

